What is the difference between Yellow Fluor and Grim Rust?

ΔE 75 (loose). Grim Rust is noticeably darker, much more muted, warmer. Swatch colours are estimates.

Yellow Fluor vs Grim Rust

Yellow Fluor

Brand: AK Interactive
Range: Glow Precision Fluor
Code: AK12111
Type: a fluorescent or effect paint
Swatch: #ffee18 (estimate)

Grim Rust

Brand: Army Painter
Range: John Blanche Vol. 1-4
Code: Vol. 2 Effects
Type: a fluorescent or effect paint
Swatch: #a6591a (estimate)

How close are they?

ΔE 74.6, loose: different enough that you should pick on purpose. Grim Rust is noticeably darker, much more muted, warmer than Yellow Fluor.

Can I use Grim Rust instead of Yellow Fluor?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 75). Grim Rust is noticeably darker, much more muted, warmer than Yellow Fluor.

Can I use Yellow Fluor instead of Grim Rust?

The same difference applies the other way round: Yellow Fluor is noticeably lighter, much more saturated, cooler.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.

See Yellow Fluor on the colour wheel See Grim Rust on the colour wheel

Other Army Painter paints close to Yellow Fluor

Yellow Fluor vs Neon YellowWarpaints Air · ΔE 4, very close · closer than Grim Rust

Other AK Interactive paints close to Grim Rust

Grim Rust vs Fluorescent Orange (AK11081)3rd Gen Standard · ΔE 31, loose · closer than Yellow Fluor
Grim Rust vs Orange Fluor (AK12113)Glow Precision Fluor · ΔE 32, loose · closer than Yellow Fluor
Grim Rust vs Light Orange Fluor (AK12112)Glow Precision Fluor · ΔE 39, loose · closer than Yellow Fluor

All matches: Yellow Fluor equivalents · Grim Rust equivalents